and since i'm suffering from insomnia again...
check out these in Cardomain.com...
http://www.cardomain.com/member_pages/search_results.cgi?searchbymemid=&searchbylocation=1&member_id=&make=BMW&model=3-Series&country=&state=&year=1982&sort_by=
http://www.cardomain.com/member_pages/search_results.cgi?searchbymemid=&searchbylocation=1&member_id=&make=BMW&model=3-Series&country=&state=&year=1983&sort_by=
after close review, i think yours is a E21 Coupe... there doesn't seem to be a coupe for the 5-series at all.
check out these in Cardomain.com...
http://www.cardomain.com/member_pages/search_results.cgi?searchbymemid=&searchbylocation=1&member_id=&make=BMW&model=3-Series&country=&state=&year=1982&sort_by=
http://www.cardomain.com/member_pages/search_results.cgi?searchbymemid=&searchbylocation=1&member_id=&make=BMW&model=3-Series&country=&state=&year=1983&sort_by=
after close review, i think yours is a E21 Coupe... there doesn't seem to be a coupe for the 5-series at all.